ZedGraph控件详细使用方法

1、用ZedGraph控件画统计分析图由于朋友需要把 ClWebChart.替换掉，改用开源的ZedGraph 控件.以下做一个示例， 供大家参考：步骤如下：1、添加ZedGraph 控件。如下图:Cent运加引甩”:kwGrfcp查找范S 匡)：if_Jf IfidgrapK_JlL_vS. 0.9dLlWeb. dll-w亠 -d d v r h h e I t z z z 2 -0Qa_ai丈件名匹:立件类型drI乜*dGr迎h dlL Ted五aph.Wtb.dirdll;*, tlb;*,(jIb;*.Qcx;*. eie)确定 I 职消 I2、添加到控制面版。如下图:Eubs ti L

2、uti onLocUiieIe iGx apkWet*指环 j-J Cri dViewi 3、制作用户控件。a> 建立一个命名为：DrawGra p. ascx用户控件。b> 通过控制面版，把 ZedGra phWeb拖到默认页面。如下图:Wacky Widget CompanyProduction ReportLmny A MoeWheazy 亍Cudy |"o o o o o6 6 4 3亠 昙IU3QJF irst Prod:丄咗飞21-O01-S3宀Jr / A t.F200400600GOD10001200Time, Day朽 ince 卩泊 M Constru

3、ction 5tarlup>c>生成代码(DrawGrap.ascx) 如下:<% Control Language="C#" AutoEventWireu p="true" CodeFile="DrawGra p. ascx.cs "lnherits="DrawGrap" %><% Register Tag Prefix="zgw" Names pace="ZedGra ph.Web" Assembly="ZedGra ph.Web

4、"%><ZGW:ZEDGRA PH WEB id="zedGra phControl" runat="server" width="500" Height="375"RenderMode="lmageTag'7>d>生成代码(DrawGrap.ascx.cs)如下:usingSystem;usingSystem.Data;usingSystem.Configuration;usingSystem.Collections;usingSystem.Web;usingS

5、ystem.Web.Security;usingSystem.Web.UI;usingSystem.Web.Ul.WebControls;usingSystem.Web.Ul.WebControls.Web Parts;usingSystem.Web.Ul.HtmIControls;usingSystem.Drawing;usingZedGra ph;usingZedGra ph.Web;usingSystem.Collections.Generic;<summary>III显示统计图形类型LIII <Isummary>public enum AnalyticsType

6、Line,II折线图Bar ,II柱状图PieII饼图public partialclass DrawGrap : System.Web.Ul.UserControl申申 Private Attribute public Prop erty |protectedvoid Page_Load( object sender , EventArgs e)zedGra phControI.RenderGra ph +=new ZedGraph.Web.ZedGraphWebControlEventHandler(zedGra phControl_RenderGra ph);privatevoid ln

7、itDefaultColors()1defaultColors.Add(Color.Red);1defaultColors.Add(Color.Green);1defaultColors.Add(Color.Blue);1defaultColors.Add(Color.Yellow);1defaultColors.Add(Color.YellowGreen);1defaultColors.Add(Color.Brown);1defaultColors.Add(Color.Aqua);1defaultColors.Add(Color.Cyan);1defaultColors.Add(Color.

8、DarkSeaGreen)1 卜defaultColors.Add(Color.Indigo);III <summary>III如果属性为空则初始化属性数据III <Isummary> private void InitProperty()I白申IIInitDefaultColors();if ( string .IsNullOrEmpty(Title)Title ="未命名统计图"if ( string .IsNullOrEmpty(XAxisTitle)XAxisTitle ="横轴"if ( string .IsNullOr

9、Empty(YAxisTitle)YAxisTitle ="纵轴"if (Type = AnalyticsT ype.Pie)Count = ScaleData.Count;else白申Count = DataSource.Count;if (Colors.Count = 0 | Colors.Count != Count)Random r =new Random();inttempi ndex = 0;List<int > tempindexList =new List< int >();for(int i = 0; i < Count; i

10、+)tempi ndex = r.Next(defaultColors.Count);if (te mpl ndexList.Contains(te mpl ndex) i-;else tempi ndexList.Add(te mpl ndex);Colors.Add(defaultColorstem pindex);if (NameList.Count = 0)if (Type = AnalyticsT yp e.Bar)for (int i = 0; i < DataSource0.Count; i+)NameList.Add("第"+ i.ToStringO

11、+ "/vparam n ame="g">v/param>elsefor (int i = 0; i < Count; i+)NameList.Add("第"+ i.ToStringO + "白申if (LabelList.Count = 0)for (int i = 0; i < Count; i+)LabelList.Add("含义-+ i.ToStringO);/<summary>/画图/</summary>/vp aram name="webObject&qu

12、ot;>v/param>III vp aram name="p ane"></param> private void zedGraphControl_RenderGraph(ZedGraph.Web.ZedGraphWeb webObjeCt, System.Drawing.Gra phics g, ZedGra ph.Master Pane p ane)Init Prop erty();GraphP ane myP ane = p ane0;myP ane.Title.Text = Title;myP ane.XAxis.Title.Text

13、 = XAxisTitle;myP ane.YAxis.Title.Text = YAxisTitle;/if (true)/DrawMessage(m yP ane, "yiafdhaskjhfasfksahfasdihfasif lasgfasgigsadi");/p ane.AxisChange(g);/return;switch (Type)case AnalyticsType.Line:DrawLine(m yP ane);break ;case AnalyticsType.Bar:DrawBar( myP ane);break ;case AnalyticsTy

14、pe.Pie:Draw Pi e(m yP ane);break ;default :break ;p ane.AxisChange(g);Drawe> 用户控件制作完成。4、对控件的使用。a>创建测试页面(DrawGrap.aspx)publicpartial class DrawGrap : System.Web.UI.Pageb>usingusingusingusingusingusingusingusingusingusingc>后台代码如下:System;System.Data;System.Configuration;System.Collections;S

15、ystem.Web;System.Web.Security;System.Web.UI;System.Web.Ul.WebControls;System.Web.Ul.WebControls.Web Parts;System.Web.UI.HtmlControls;把用户控件DrawGrap.ascx拖到默认的测试页面上 (DrawGrap.aspx)日0protectedvoid Page_Load( object sender , EventArgs e)申中/柱状图DrawBar();/饼图/Draw Pie();/曲线图/DrawLine();private void DrawBar(

16、)DrawGra p1.T ype = AnalyticsT yp e.Bar;DrawGra p1.Title ="用户访问柱状图"DrawGra p1.XAxisTitle ="月份"DrawGra p1.YAxisTitle ="用户访问数量"Random rand =newRandom();for (int i = 0; i < 6; i+)白申ZedGra ph.Po int PairList ppi =new ZedGraph.PointPairList();for (int j = 0; j < 3; j+)

17、double x = rand.Next(IO);double y = rand.NextDouble() * 1000;pp l.Add(x, y);DrawGra p1.DataSource.Add( ppi);privatevoid DrawPie()DrawGra p1.T ype = AnalyticsT ype.Pie;DrawGra p1.Title ="用户访问饼图"Random rand =new Random();for (int i = 0; i < 3; i+)DrawGra p1.ScaleData.Add(i + 2) * rand.Nex

18、t(IOO);DrawGra p1.NameList.Add(i.ToString();privatevoid DrawLine()DrawGra p1.T ype = AnalyticsT yp e.Line;DrawGra pl.Title ="用户访问曲线图"DrawGra pl.XAxisTitle ="月份"DrawGra pl.YAxisTitle ="用户访问数量"Random rand =newRandom();for (int i = 0; i < 3; i+)ZedGra ph.Po int PairList ppi =new ZedGraph.PointPairList();for (double x = 0; x < 5; x += 1.0)doub